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11. 发明公开

US20230167517A1 METHOD FOR PRODUCING REDUCED IRON 审中-公开
公开(公告)号：US20230167517A1
公开(公告)日：2023-06-01
申请号：US17921745
申请日：2021-05-14
申请人： NIPPON STEEL CORPORATION
发明人： Takanobu INADA , Moritoshi MIZUTANI , Yutaka UJISAWA , Naoto YASUDA , Hitoshi FUNAGANE
IPC分类号： C21B13/00 , C21B13/02
CPC分类号： C21B13/0073 , C21B13/02 , C21B2100/40 , C21B2100/64
摘要： A method for producing reduced iron that produces reduced iron by reducing iron oxide charged in a shaft furnace, in which a heated gas mixture which contains a reducing gas and a nitrogen gas, the reducing gas containing 90 volume % or more of a hydrogen gas, is blown into the shaft furnace from a tuyere equipped at a lower portion of a reduction zone of the shaft furnace, at least part of the reducing gas is blown into a cooling zone of the reduced iron provided at a lower portion of the shaft furnace at normal temperature, and the reducing gas that has flowed up in the cooling zone is used for reduction of the iron oxide.

12. 发明公开

US20230167516A1 METHOD FOR PRODUCING REDUCED IRON 审中-公开
公开(公告)号：US20230167516A1
公开(公告)日：2023-06-01
申请号：US17921654
申请日：2021-05-13
申请人： NIPPON STEEL CORPORATION
发明人： Takanobu INADA , Moritoshi MIZUTANI , Yutaka UJISAWA
IPC分类号： C21B13/00 , C21B13/02
CPC分类号： C21B13/0073 , C21B13/02 , C21B2100/28 , C21B2100/40 , C21B2100/64
摘要： A method for producing reduced iron that produces reduced iron by reducing iron oxide charged in a shaft furnace, in which a gas mixture which contains a reducing gas and a nitrogen gas, and has a predetermined temperature, is blown into the shaft furnace. The reducing gas contains 90 volume% or more of a hydrogen gas.

13. 发明公开

US20240279757A1 DIRECT BATH SMELTING PROCESS WITH FAST QUENCH OF MOLTEN MATERIAL IN HOT OFFGAS 审中-公开
公开(公告)号：US20240279757A1
公开(公告)日：2024-08-22
申请号：US18441101
申请日：2024-02-14
申请人： NUCOR CORPORATION
发明人： Rodney James Dry , Mark Hayton
IPC分类号： C21B13/00 , C21B13/10
CPC分类号： C21B13/0013 , C21B13/105 , C21B2100/40 , C21B2400/024 , C21B2400/032 , C21B2400/062 , C21B2400/072
摘要： An improved direct smelting system and process using a smelt reduction vessel (SRV), and optionally, a cyclone converter furnace (CCF). The improved system and process utilizes a fast quench system in which hot process offgas containing molten material is quench-cooled from greater than 1400° C. (2552° F.) to no more than 600° C. (1112° F.) in a time-of-flight of no greater than 1 second. The quenching occurs using water spray injection and vaporization to cool, stress and break solid slag into slag pieces small enough to remove from the quenching system. The improved system eliminates plant availability problems associated with (i) accretion formation in the offgas train as hot process offgas cools down in a conventional (slow) manner to allow for steam-raising for power generation or other heat recovery purposes, and (ii) trigger mechanisms causing slag foaming events in the SRV that propagate up the offgas train.

14. 发明授权

US09783862B2 Apparatus for manufacturing reduced iron and method for manufacturing the same 有权
公开(公告)号：US09783862B2
公开(公告)日：2017-10-10
申请号：US13496683
申请日：2010-07-14
申请人： Myoung-Kyun Shin , Dong-Won Kim , Sang-Hyun Kim , Jun-Hyuk Lee
发明人： Myoung-Kyun Shin , Dong-Won Kim , Sang-Hyun Kim , Jun-Hyuk Lee
IPC分类号： C22B5/12 , C22B5/14 , C21B13/00 , F27D17/00 , C21B13/14
CPC分类号： C21B13/0033 , C21B13/143 , C21B2100/02 , C21B2100/06 , C21B2100/40 , C21B2100/66 , C21B2100/80 , F27D17/004
摘要： Provided is an apparatus for manufacturing reduced iron and a method for manufacturing reduced iron. The method for manufacturing reduced iron includes the steps of: i) drying ores in an ore drier; ii) supplying the dried ores to at least one reduction reactor; iii) reducing the ores in the at least one reduction reactor and manufacturing reduced iron; iv) discharging exhaust gas by which the ores are reduced in the reduction reactor; v) branching the exhaust gas and providing the branched exhaust gas as ore feeding gas; and vi) exchanging heat between the exhaust gas and the ore feeding gas and transferring the sensible heat of the exhaust gas to the ore feeding gas. In the steps of supplying the dried ores to the at least one reduction reactor, the dried ores are supplied to the at least one reduction reactor by using the ore feeding gas.

15. 发明申请

US20120174711A1 Apparatus for Manufacturing Reduced Iron and Method for Manufacturing the Same 有权
标题翻译：制造减少铁的装置及其制造方法
公开(公告)号：US20120174711A1
公开(公告)日：2012-07-12
申请号：US13496683
申请日：2010-07-14
申请人： Myoung-Kyun Shin , Dong-Won Kim , Sang-Hyun Kim , Jun-Hyuk Lee
发明人： Myoung-Kyun Shin , Dong-Won Kim , Sang-Hyun Kim , Jun-Hyuk Lee
IPC分类号： C22B5/12 , C22B5/14
CPC分类号： C21B13/0033 , C21B13/143 , C21B2100/02 , C21B2100/06 , C21B2100/40 , C21B2100/66 , C21B2100/80 , F27D17/004
摘要： Provided is an apparatus for manufacturing reduced iron and a method for manufacturing reduced iron. The method for manufacturing reduced iron includes the steps of: i) drying ores in an ore drier; ii) supplying the dried ores to at least one reduction reactor; iii) reducing the ores in the at least one reduction reactor and manufacturing reduced iron; iv) discharging exhaust gas by which the ores are reduced in the reduction reactor; v) branching the exhaust gas and providing the branched exhaust gas as ore feeding gas; and vi) exchanging heat between the exhaust gas and the ore feeding gas and transferring the sensible heat of the exhaust gas to the ore feeding gas. In the steps of supplying the dried ores to the at least one reduction reactor, the dried ores are supplied to the at least one reduction reactor by using the ore feeding gas.
摘要翻译：提供了一种制造还原铁的装置和一种制造还原铁的方法。制造还原铁的方法包括以下步骤：i）在矿石干燥器中干燥矿石; ii）将干燥的矿石供应至至少一个还原反应器; iii）减少所述至少一个还原反应器中的矿石并制造还原铁; iv）排放还原反应器中矿石减少的废气; v）分流排气并提供分支排气作为进料气体; 和vi）在废气和送矿气体之间进行热交换，并将废气的显热转移到给矿气体。在将干燥的矿石供应到至少一个还原反应器的步骤中，通过使用给矿气体将干燥的矿石供应至至少一个还原反应器。

16. 发明申请

WO2011034276A2 환원철 제조 장치 및 그 제조 방법 审中-公开
标题翻译：制造减少铁的装置和方法
公开(公告)号：WO2011034276A2
公开(公告)日：2011-03-24
申请号：PCT/KR2010/004589
申请日：2010-07-14
申请人： 주식회사 포스코 , 신명균 , 김동원 , 김상현 , 이준혁
发明人： 신명균 , 김동원 , 김상현 , 이준혁
IPC分类号： C21B13/06
CPC分类号： C21B13/0033 , C21B13/143 , C21B2100/02 , C21B2100/06 , C21B2100/40 , C21B2100/66 , C21B2100/80 , F27D17/004
摘要： 본 발명은 환원철 제조 장치 및 그 제조 방법에 관한 것이다. 환원철의 제조 방법은, i) 광석 건조기에서 광석을 건조시키는 단계, ii) 건조된 광석을 하나 이상의 환원로에 공급하는 단계, iii) 하나 이상의 환원로에서 광석을 환원시켜서 환원철을 제조하는 단계, iv) 환원로로부터 광석을 환원시킨 배가스를 배출시키는 단계, v) 배가스를 분기하여 광석 이송용 가스를 제공하는 단계, 및 vi) 배가스 및 광석 이송용 가스를 열교환시켜서 배가스의 현열을 광석 이송용 가스에 전달하는 단계를 포함한다. 건조된 광석을 하나 이상의 환원로에 공급하는 단계에서, 광석 이송용 가스에 의해 건조된 광석을 하나 이상의 환원로에 공급한다.
摘要翻译：本发明涉及一种制造还原铁的装置和方法。制造还原铁的方法包括：i）在矿石干燥器中干燥矿石的步骤; （ii）将干燥矿石供应到一个或多个还原炉的步骤; iii）减少一个或多个还原炉中的矿石以产生还原铁的步骤; iv）从还原炉中释放在减矿步骤期间产生的废气的步骤; v）分流废气以供给输送矿石的步骤; 以及vi）在废气和送矿气体之间进行热交换以将废气的显热输送到输送气体的步骤。在将干燥矿石供应到一个或多个还原炉的步骤中，由输送矿石的干燥的矿石被供给至一个或多个还原炉。

17. 发明专利

JP5625062B2 還元鉄製造装置およびその製造方法有权
标题翻译：还原铁的制造装置及其制造的方法
公开(公告)号：JP5625062B2
公开(公告)日：2014-11-12
申请号：JP2012529649
申请日：2010-07-14
申请人：ポスコ
发明人：ミョンキュンシン、 , ミョンキュンシン、 , ドン−ウォンキム、 , ドン−ウォンキム、 , サン−ヒュンキム、 , サン−ヒュンキム、 , ヒュクイ、ジュン , ジュンヒュクイ、
IPC分类号： C22B1/00 , C21B13/00 , C21B13/02
CPC分类号： C21B13/0033 , C21B13/143 , C21B2100/02 , C21B2100/06 , C21B2100/40 , C21B2100/66 , C21B2100/80 , F27D17/004

18. 发明公开

EP3348654A1 APPARATUS FOR DECOMPOSING TAR, APPARATUS FOR PRODUCING MOLTEN IRON, AND METHOD FOR PRODUCING MOLTEN IRON 审中-公开
公开(公告)号：EP3348654A1
公开(公告)日：2018-07-18
申请号：EP16844556.7
申请日：2016-06-07
申请人： Posco
发明人： SHIN, Myoung Kyun , KO, Chang Kuk , CHO, Min Young
IPC分类号： C21B13/00 , C21B13/14
CPC分类号： C21B13/143 , C21B13/002 , C21B13/004 , C21B13/0073 , C21B2100/00 , C21B2100/20 , C21B2100/22 , C21B2100/24 , C21B2100/26 , C21B2100/28 , C21B2100/282 , C21B2100/284 , C21B2100/40 , Y02P10/136
摘要： An apparatus for manufacturing molten iron according to an exemplary embodiment of the present invention includes: one or more reducing furnaces which manufacture reduced iron by reducing ore; an input device which inputs coal and the reduced iron discharged from the reducing furnace into a melting and gasifying furnace; the melting and gasifying furnace which combusts the coal supplied from the input device by using oxygen, and melts the reduced iron by using combustion heat to manufacture molten iron; and a tar decomposition furnace which is connected to the melting and gasifying furnace, and decomposes a tar component included in gas discharged from the melting and gasifying furnace.

19. 发明公开

EP2479292A4 APPARATUS AND METHOD FOR MANUFACTURING REDUCED IRON 有权
标题翻译：装置和方法还原铁制造
公开(公告)号：EP2479292A4
公开(公告)日：2016-12-28
申请号：EP10817345
申请日：2010-07-14
申请人： POSCO
发明人： SHIN MYOUNG KYUN , KIM DONG-WON , KIM SANG-HYUN , LEE JUN HYUK
IPC分类号： C21B13/06 , C21B13/00 , C21B13/14 , F27D17/00
CPC分类号： C21B13/0033 , C21B13/143 , C21B2100/02 , C21B2100/06 , C21B2100/40 , C21B2100/66 , C21B2100/80 , F27D17/004
摘要： The present invention relates to an apparatus for manufacturing reduced iron and method for manufacturing reduced iron. The method for manufacturing reduced iron includes: i) drying ores in an ore drier; ii) supplying the dried ores to at least one reduction reactor; iii) reducing the ores in the at least one reduction reactor and manufacturing reduced iron; iv) discharging exhaust gas by which the ores are reduced in the reduction reactor; v) branching the exhaust gas and providing the branched exhaust gas as ore feeding gas; and vi) exchanging heat between the exhaust gas and the ore feeding gas and transferring the sensible heat of the exhaust gas to the ore feeding gas. In the supplying the dried ores to the at least one reduction reactor, the dried ores are supplied to the at least one reduction reactor by using the ore feeding gas.

20. 发明公开

EP2479292A2 APPARATUS AND METHOD FOR MANUFACTURING REDUCED IRON 有权
标题翻译： VORRICHTUNG UND VERFAHREN ZUR HERSTELLUNG VON REDUZIERTEM EISEN
公开(公告)号：EP2479292A2
公开(公告)日：2012-07-25
申请号：EP10817345.1
申请日：2010-07-14
申请人： Posco
发明人： SHIN, Myoung Kyun , KIM, Dong-Won , KIM, Sang-Hyun , LEE, Jun Hyuk
IPC分类号： C21B13/06
CPC分类号： C21B13/0033 , C21B13/143 , C21B2100/02 , C21B2100/06 , C21B2100/40 , C21B2100/66 , C21B2100/80 , F27D17/004
摘要： The present invention relates to an apparatus for manufacturing reduced iron and method for manufacturing reduced iron. The method for manufacturing reduced iron includes: i) drying ores in an ore drier; ii) supplying the dried ores to at least one reduction reactor; iii) reducing the ores in the at least one reduction reactor and manufacturing reduced iron; iv) discharging exhaust gas by which the ores are reduced in the reduction reactor; v) branching the exhaust gas and providing the branched exhaust gas as ore feeding gas; and vi) exchanging heat between the exhaust gas and the ore feeding gas and transferring the sensible heat of the exhaust gas to the ore feeding gas. In the supplying the dried ores to the at least one reduction reactor, the dried ores are supplied to the at least one reduction reactor by using the ore feeding gas.
摘要翻译：本发明涉及一种制造还原铁的装置及其制造方法。还原铁的制造方法包括：i）在矿石干燥器中干燥矿石; ii）将干燥的矿石供应至至少一个还原反应器; iii）减少至少一个还原反应器中的矿石并制造还原铁; iv）排出还原反应器中矿石减少的废气; v）分流排气并提供作为矿石输送气体的分支废气; 以及vi）在排气和送矿气体之间进行热交换，并将排气的显热转移到给矿气体。在将干燥的矿石供应到至少一个还原反应器中时，通过使用给矿气体将干燥的矿石供应至至少一个还原反应器。

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